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> Verify All Assumptions When you have to worry about the environment unexpectedly reusing internal variables, when is it considered foolish to use a framework

by jack9 9y ago

> Verify All Assumptions When you have to worry about the environment unexpectedly reusing internal variables, when is it considered foolish to use a framework where you have to question every relationship between every concept? Just stop using it.

thesmallestcat 9y ago
Or one could learn how `this` works, which is that example is really talking about. I was unimpressed by these lessons. There are no dark corners of Node, or JS in general, here. It's more of a narration of the author's growth as an engineer. The "call the callback last" recommendation is particularly odd.
- ninkendo 9y ago
  The counterintuitive behavior of "this" in JavaScript doesn't need any defending. I've never heard a justification for this or any other of JavaScript's quirks that wasn't just a thinly veiled lecture on how it works.
  - shados 9y ago
    if nothing else, the javascript "this" is teaching people alternatives to coding that don't need it in the first place. (I don't think JS "this" is that bad...it's just not needed at all)
  - bbcbasic 9y ago
    They should name it arg0, as that is more indicative of what it is than "this".
savanaly 9y ago
Yeah...I think we have to use some context clues in interpreting this particular piece of advice. Clearly, he's not suggesting you verify all assumptions as it would take millenia to verify literally all the assumptions that one makes when writing a complicated program. Personally, I interpret it as meaning he believes that the average developer's baseline calibration for how much is to be assumed is too trusting and people should verify more assumptions than they do-- starting with the most dubious ones of course.
- wgjordan 9y ago
  'If you wish to make an apple pie from scratch, you must first invent the universe.' - Carl Sagan
bradmwalker 9y ago
https://www.youtube.com/watch?v=D5xh0ZIEUOE https://www.youtube.com/watch?v=D5xh0ZIEUOE

by jack9 9y ago

thesmallestcat 9y ago

Or one could learn how `this` works, which is that example is really talking about. I was unimpressed by these lessons. There are no dark corners of Node, or JS in general, here. It's more of a narration of the author's growth as an engineer. The "call the callback last" recommendation is particularly odd.

ninkendo 9y ago
The counterintuitive behavior of "this" in JavaScript doesn't need any defending. I've never heard a justification for this or any other of JavaScript's quirks that wasn't just a thinly veiled lecture on how it works.
- shados 9y ago
  if nothing else, the javascript "this" is teaching people alternatives to coding that don't need it in the first place. (I don't think JS "this" is that bad...it's just not needed at all)
- bbcbasic 9y ago
  They should name it arg0, as that is more indicative of what it is than "this".

savanaly 9y ago

Yeah...I think we have to use some context clues in interpreting this particular piece of advice. Clearly, he's not suggesting you verify all assumptions as it would take millenia to verify literally all the assumptions that one makes when writing a complicated program. Personally, I interpret it as meaning he believes that the average developer's baseline calibration for how much is to be assumed is too trusting and people should verify more assumptions than they do-- starting with the most dubious ones of course.

wgjordan 9y ago
'If you wish to make an apple pie from scratch, you must first invent the universe.' - Carl Sagan

bradmwalker 9y ago

https://www.youtube.com/watch?v=D5xh0ZIEUOE https://www.youtube.com/watch?v=D5xh0ZIEUOE